Pipe shearing equipment and pipe shearing method

Abstract

The invention discloses pipe shearing equipment and a pipe shearing method. The pipe shearing equipment comprises a main body, a conveying assembly, a positioning assembly and a shearing assembly, wherein the conveying assembly, the positioning assembly and the shearing assembly are mounted on the main body; the conveying assembly is provided with a conveying channel allowing pipes to penetrate through, the conveying assembly and the positioning assembly abut against the outer walls of the pipes penetrating through the conveying channel so as to achieve circumferential limiting and axial conveying of the pipes, and the shearing assembly cuts the pipes conveyed in the axial direction. According to the automatic pipe cutting device, pipes with different pipe diameters can be stably clamped and accurately conveyed, the specification change of the pipes in the production process can be flexibly coped with, the problem of production interruption or low efficiency caused by mismatching of the sizes of the pipes is solved, the pipe feeding speed and the pipe cutting length can be set in an automatic continuous cutting mode, batch production can be achieved, and the automatic pipe cutting device is suitable for large-scale production.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe cutting, and particularly relates to a pipe cutting device and a pipe cutting method. Background Art

[0002] Automatic pipe cutting machines are widely used in industries such as petroleum, metallurgy, bearings, machinery manufacturing, automobile manufacturing, aerospace, etc., for cutting various metal and non-metal pipes to meet the requirements of mass production and high-precision cutting.

[0003] In the manufacturing process of eddy current sensors, it covers multiple precise and key steps, mainly including pipe cutting, wire threading, pipe pulling, pipe rolling, and welding. These steps together ensure the high precision and high quality of eddy current sensors. However, currently, the company highly relies on manual operation in the manufacturing equipment of eddy current sensors, with relatively low automation. This not only leads to a significant increase in labor costs but also severely restricts the improvement of production efficiency. The production capacity is largely limited by the efficiency and accuracy of manual operation. Throughout the manufacturing process, from the preparation of components, processing and assembly to debugging, all require the full participation of manual labor, which undoubtedly increases the uncertainty and cost of production.

[0004] However, the pipe cutting machine equipment on the market generally has the problem of large floor area, which limits its application range in small production lines. In addition, there are also certain difficulties in the pipe cutting equipment on the market in adapting to the production process of eddy current sensors. As a precision sensor component, the production process of eddy current sensors has extremely high requirements for the precision, stability, and compatibility of the equipment. However, the existing pipe cutting equipment often fails to fully consider the special requirements of the production process of eddy current sensors in terms of design and function, resulting in difficulty in achieving precise docking and efficient coordination with the production process of eddy current sensors in actual applications. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a pipe cutting device and a pipe cutting method.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A pipe cutting device includes: a main body, and a conveying component, a positioning component, and a shearing component respectively installed on the main body;

[0008] The conveying component has a conveying channel for the pipe to pass through. The conveying component and the positioning component abut against the outer wall of the pipe passing through the conveying channel to achieve circumferential limitation and axial conveying of the pipe, and the shearing component cuts the axially conveyed pipe.

[0009] Further, in the pipe cutting device, it is preferred that the conveying assembly includes at least one set of limiting structures installed on the main body along the central axis direction of the pipe. The limiting structure includes two guiding blocks oppositely installed on the main body, and the conveying channel is formed between the two guiding blocks.

[0010] Further, in the pipe cutting device, it is preferred that the conveying assembly further includes a first driving member installed on the main body and at least one first roller rotatably installed on the main body and connected to the output end of the first driving member, so as to abut against the outer wall of the arc surface on one side of the pipe to realize the circumferential limiting and axial conveying of the pipe.

[0011] Further, in the pipe cutting device, it is preferred that the positioning assembly includes a sliding plate, a driving module, a second roller and a second driving member;

[0012] The sliding plate is arranged on the main body and can move back and forth between a first position and a second position;

[0013] The driving module is installed on the main body, and its output end is connected to the sliding plate to drive the sliding plate to move back and forth between the first position and the second position;

[0014] The second driving member is arranged on the sliding plate, and the second roller is connected to the output end of the second driving member. When the sliding plate is in the first position, the second roller will abut against the outer wall of the arc surface on the other side of the pipe to realize the circumferential limiting and axial conveying of the pipe; when the sliding plate is in the second position, the second roller releases the abutment against the outer wall of the arc surface on the other side of the pipe.

[0015] Further, in the pipe cutting device, it is preferred that the wheel surfaces of the first roller and the second roller are respectively concave to form a first raceway and a second raceway that match the pipe. When the second roller is in the first position, the first raceway and the second raceway of the first roller and the second roller are in an upper and lower clamping state to circumferentially clamp and limit the pipe and axially convey the pipe.

[0016] Further, in the pipe cutting device, it is preferred that the cutting assembly includes a cutting knife arranged on the main body and a driving assembly installed on the main body and connected to the cutting knife to drive the cutting knife to cut the pipe;

[0017] It further includes a triggering part connected to the cutting knife.

[0018] Further, in the pipe cutting device, it is preferred that the pipe cutting device further includes a first photoelectric sensor installed on the main body for detecting whether the pipe enters the conveying channel; and / or

[0019] A second optoelectronic sensor is used to detect whether the triggering part of the shearing assembly is in place.

[0020] Furthermore, in the described pipe cutting device, preferably, the pipe cutting device further includes an input module and a control module;

[0021] The input module is used to input a cutting instruction and transmit the cutting instruction to the control module;

[0022] The control module controls the conveying assembly and the shearing assembly to cut the pipe according to the cutting instruction.

[0023] A pipe cutting method for a pipe cutting device includes the following steps:

[0024] S1: According to the cutting instruction, control the conveying assembly of the pipe cutting device to axially convey the pipe;

[0025] S2: Judge whether the length of the pipe axially conveyed reaches the length corresponding to the cutting instruction; when it reaches, control the shearing assembly of the pipe cutting device to cut.

[0026] Furthermore, in the pipe cutting method of the described pipe cutting device, preferably, in step S2, it includes:

[0027] S2-1: Judge whether the length of the pipe axially conveyed reaches the length corresponding to the cutting instruction by calculating the number of rotation turns of the first driving part of the conveying assembly;

[0028] The pipe cutting method further includes:

[0029] S3: Judge the total conveying length of the conveying assembly, and when the total conveying length reaches the set length, control the conveying assembly and the shearing assembly to stop working.

[0030] Implementing the present invention has the following beneficial effects: Stable clamping and precise conveying of pipes with different pipe diameters can flexibly cope with changes in pipe specifications during the production process, avoiding production interruptions or low efficiency problems caused by mismatched pipe sizes. In the automated continuous cutting mode, the pipe feeding speed and cutting length can be set, enabling batch production and being suitable for large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0032] Figure 1 is a schematic three-dimensional structure diagram of a pipe cutting device in some embodiments of the present invention;

[0033] Figure 2 isFigure 1 Schematic diagram of the three-dimensional exploded structure of the pipe cutting device shown;

[0034] Figure 3 is Figure 2 Schematic diagram of the three-dimensional structure of the conveying component shown;

[0035] Figure 4 is Figure 2 Schematic diagram of the three-dimensional structure of the positioning component shown;

[0036] Figure 5 is Figure 2 Schematic diagram of the three-dimensional structure of the cutting component shown;

[0037] Figure 6 is Figure 1 Schematic diagram of the structure of the hidden cutting component shown. Detailed implementation manners

[0038] For a clearer understanding of the technical features, objectives, and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientation or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation, only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific orientation, and thus should not be construed as a limitation to the present invention.

[0039] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. When an element is referred to as being "above" or "below" another element, the element can be "directly" or "indirectly" located above the other element, or there may also be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", etc. can explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. However, those skilled in the art should clearly understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present invention.

[0041] The technical solution adopted by the present invention to solve its technical problems is:

[0042] As Figure 1 and Figure 2 shown, some embodiments of the present invention disclose a pipe cutting device, which may include, in some embodiments: a main body 10, and a conveying component 20, a positioning component 30, and a cutting component 40 respectively installed on the main body 10. The conveying component 20 has a conveying channel 210 (please refer to Figure 3 ) for the pipe to pass through and be conveyed. The conveying component 20 and the positioning component 30 can abut against the outer wall of the pipe passing through the conveying pipeline 210 to achieve circumferential limitation and axial conveyance of the pipe. The cutting component 40 includes a cutting knife 41 installed on the main body 10, and the cutting knife 41 cuts the axially conveyed pipe. It can be understood that the pipe is fed into the cutting knife 41 of the cutting component 40 by the conveying component 20 for cutting. At the same time, during the conveying process, the positioning component 30 can cooperate with the conveying component 20 to firmly clamp the pipe to ensure the stability and accuracy during the conveying process.

[0043] Continuing to refer to Figure 2 , the main body 10 may include, in some embodiments, a table top 11 and support legs 12. There are four support legs 12, which are respectively installed at the four corners of the table top 11 to be assembled with the table top 11 into a workbench. The support legs 12 are made of materials such as aluminum profiles and steel plates. In some embodiments, support legs 12 can also be respectively installed on the four sides of the table top 11 for fixing other devices.

[0044] As Figure 2 and Figure 3 shown, the conveying component 20 may include, in some embodiments, a bottom plate 21, a limiting structure 22, a first driving member 23, and first rollers 24. The bottom plate 21 is installed on the table top 11 of the main body 10, the limiting structure 22 is installed on the bottom plate 21, the first driving member 23 is installed on the table top 11, there are two first rollers 24, which are rotatably installed on the table top 11, the first driving member 23 is installed on the table top 11 of the main body 10, and the output end of the first driving member 23 is connected to the two first rollers 24 to drive the two first rollers 24 to rotate in the same direction. The arc-shaped outer wall of the pipe is pressed against the two first rollers 24, and the two first rollers 24 convey the pipe.

[0045] In some embodiments, the limiting structure 22 may include a guide plate 222 mounted on the bottom plate 21 and two guide blocks 221 oppositely mounted on the guide plate 222, and the opposite side walls of the two guide blocks 221 are provided with inclined surfaces that slope outward; a conveying channel 210 is formed between the two guide blocks 221. In some embodiments, there are three sets of limiting structures 22, that is to say, there are six guide blocks 221, and the three pairs of oppositely arranged guide blocks 221 are parallelly mounted on the bottom plate 21.

[0046] In some embodiments, synchronous belt pulleys are respectively mounted on the output end shaft of the first driving member 23 and the central shafts of the two first rollers 24, and the three synchronous belt pulleys are connected by a synchronous belt, and a tensioning mechanism cooperating with the synchronous belt is provided on the table surface 11 of the main body 10 to make the first rollers 24 rotate synchronously.

[0047] In some embodiments, the wheel surface of the first roller 24 is concave to form a first raceway 241 that matches the shape of the pipe. The first raceway 241 fits on the arc surface of the pipe to stably and continuously feed the pipe into the shearing assembly 40. In some embodiments, anti-slip lines are provided on the first raceway 241 to increase the friction with the pipe and prevent the pipe from slipping.

[0048] As Figure 2 and Figure 4 shown, in some embodiments, the positioning assembly 30 may include a slide plate 31, a driving module 32, a second roller 33, a second driving member 34, a guide rail 35, a slider 36, a first positioning frame 37, and a second positioning frame 38. The guide rail 35 is mounted on the table surface 11 of the main body 10, the slider 36 is slidably mounted on the guide rail 35, the slide plate 31 is fixedly mounted on the slider 36, the first positioning frame 37 is fixedly mounted on the table surface 11 of the main body 10, the driving module 32 is mounted on the positioning frame 37, and the output end is connected to the second positioning frame 38 of the slide plate 31. The second driving member 34 is mounted on the slide plate 31, and the second roller 33 is rotatably mounted on the slide plate 31 and connected to the output end of the second driving member 34. It can firmly clamp and adapt to pipes with a diameter range between 8 mm and 13 mm, ensuring the stability and accuracy of the pipes during transportation.

[0049] The driving module 32 is used to drive the sliding plate 31 to move back and forth between the first position and the second position. When the sliding plate 31 is in the first position, the second roller 33 abuts against the outer arc surface on the other side of the pipe to realize the circumferential limit and axial conveyance of the pipe. When the sliding plate 31 is in the second position, the second roller 33 releases the abutment against the outer arc surface on the other side of the pipe. It can be understood that the driving module 32 drives the sliding plate 31 to move in the diameter direction of the pipe along the guide rail 35, so that the second roller 33 cooperates with the first roller 24 to clamp and limit the pipe axially up and down. At the same time, the second driving member 34 drives the second roller 33 to rotate to perform stable axial conveyance, so that the cutting length error of the pipe is controlled within ±1 cm, meeting the high consistency requirements of the eddy current sensor for the pipe size.

[0050] Refer to together Figure 1 , in some embodiments, the sliding plate 31 is in the same plane as the bottom plate 21, so that the first roller 24 and the second roller 33 are also in the same plane, ensuring that the clamping of the pipe by the first roller 24 and the second roller 33 is maintained in the same horizontal plane.

[0051] In some embodiments, the driving module 32 is a cylinder. Of course, in other embodiments, the driving module 32 can also be a linear module, an electric driving rod, etc.

[0052] In some embodiments, the wheel surface of the second roller 33 is concave with a second raceway 331 that matches the circumferential direction of the pipe. When the second roller 33 is in the first position, the first raceway 241 of the first roller 24 and the second raceway 331 of the second roller 33 are in an up-and-down clamping state to clamp and limit the pipe circumferentially and convey it axially. In other embodiments, a plurality of second rollers 33 are provided, and the plurality of second rollers 33 perform circumferential limit on the pipe at a plurality of axial conveyance positions. In this embodiment, two second rollers 33 are provided, and the two second rollers 33 are arranged opposite to the two first rollers 24 described above to perform circumferential limit on two places of the pipe.

[0053] In some embodiments, the second driving member 34 is a motor. Synchronous belt wheels are respectively installed on the output end of the motor and the rotating shafts of the two second rollers 33, and the three synchronous belt wheels are connected by two synchronous belts. The motor drives the two second rollers 33 to rotate through the three synchronous belt wheels and the two synchronous belts. In addition, a tensioning structure is also installed on the sliding plate 31 in some embodiments, and the tensioning structure is used to adjust the tension of the synchronous belt so that the two second rollers 33 rotate synchronously.

[0054] Such as Figure 2 And Figure 5As shown, in some embodiments, the shearing assembly 40 may include a cutting knife 41, a driving assembly 42, and a mounting base 43. The mounting base 43 is mounted on the main body 10. An outlet hole 430 coaxial with the conveying channel 210 is formed in the mounting base 43. The cutting knife 41 is rotatably mounted on the mounting base 43 through a shaft rod to cut the pipe conveyed from the conveying channel 210 into the outlet hole 430. The driving assembly 42 is mounted on the main body 10 and is used to drive the cutting knife 41 to rotate.

[0055] In some embodiments, the cutting knife 41 has a scissors structure. The cutting knife 41 applies pressure through mechanical transmission to perform the shearing operation, replacing manual shearing. Of course, in other embodiments, the cutting knife 41 can also be a cutting tool such as a blade.

[0056] In some embodiments, the driving assembly 42 may include a third driving member 422, a driving gear 423, and a transmission gear 421. The third driving member 422 is mounted on the main body 10. The driving gear 423 is mounted on the output shaft of the third driving member 422. The transmission gear 421 is mounted on the cutting knife 41. The driving gear 423 meshes with the transmission gear 421. The third driving member 422 rotates to drive the transmission gear 421 to rotate through the driving gear 423, so as to drive the cutting knife 41 to rotate to cut the pipe.

[0057] As Figure 1 and Figure 6 shown, the pipe cutting device further includes a first photoelectric sensor 52 mounted on the main body 10, which is used to detect whether the pipe enters the conveying channel 210. The first photoelectric sensor 52 is used to detect that the pipe enters the conveying pipeline 210, and then controls the positioning assembly 30 to move to press the pipe. In other words, the first photoelectric sensor 52 is used to detect whether the pipe is conveyed out of the conveying channel 210. When it is determined that the pipe is conveyed out of the conveying channel 210, the conveying work is completed, and then the positioning assembly 30 performs circumferential limiting on the pipe.

[0058] Referring together to Figure 6 , in some embodiments, the pipe cutting device further includes a support base 51 mounted on the main body 10; wherein, the first photoelectric sensor 52 is mounted on the support base 51, and the first photoelectric sensor 52 is located at the opening of the conveying channel 210 near the shearing assembly 40.

[0059] Referring again to Figure 5, the second photoelectric sensor 53 is installed on the main body 10 and is used to detect whether the shearing assembly 40 is in place. In some embodiments, the shearing assembly 40 further includes a trigger portion 44 provided on the transmission gear 421, and the trigger portion 44 is located above the second photoelectric sensor 53. When the cutting knife 41 cuts, the transmission gear 421 drives the trigger portion 44 to rotate together. When the trigger portion 44 rotates to the detection end of the second photoelectric sensor 53 (or when the trigger portion 44 rotates into the detection end of the second photoelectric sensor 53), the second photoelectric sensor 53 is triggered, and at this time, it represents that the cutting of the pipe by the cutting knife 41 is completed.

[0060] Refer again to Figure 1 and Figure 6 , the pipe cutting device further includes an input module and a control module; the input module is used to input a cutting instruction and transmit the cutting instruction to the control module; the control module controls the conveying assembly 20 and the shearing assembly 40 to cut the pipe according to the cutting instruction.

[0061] The above-mentioned first photoelectric sensor 52 and second photoelectric sensor 53 are composed of three parts: a light source, an optical path, and a photoelectric element. After the light emitted by the light source is reflected or blocked by an object (the first photoelectric sensor 52 is reflected or blocked by the pipe, and the second photoelectric sensor 53 is reflected or blocked by the trigger portion 44), the photoelectric element detects the change in light intensity and converts it into an electrical signal, thereby completing the detection.

[0062] The above-mentioned first photoelectric sensor 52 and second photoelectric sensor 53 can adopt opposed photoelectric sensors, retroreflective photoelectric sensors, diffuse reflection photoelectric sensors, groove photoelectric sensors, etc.

[0063] A pipe cutting method for a pipe cutting device includes the following steps: S1: According to the cutting instruction, control the conveying assembly 20 of the pipe cutting device to axially convey the pipe. Specifically, the pipe is placed into the conveying channel 210, the input module (host computer) inputs the cutting instruction and transmits the instruction to the control module, and the control module controls the first driving member 23 to drive the first roller 24 to rotate according to the instruction, so as to convey the pipe in the conveying channel 210 towards the shearing assembly 40. During the conveying process, the pipe passes through the first photoelectric sensor 52, and the triggered signal is sent to the control module. The control module controls the driving module 32 to push the sliding plate 31 towards the first roller 24, so that the second roller 33 presses on the circumferential surface of the pipe, and the first roller 24 and the second roller 33 form a clamping on the pipe for stable conveying.

[0064] S2: Determine whether the length of the pipe transported axially reaches the length corresponding to the cutting instruction; when it reaches, control the cutting component 40 of the pipe cutting device to perform cutting. In step S2, it includes: S2-1: Determine whether the length of the pipe transported axially reaches the length corresponding to the cutting instruction by calculating the number of rotations of the first driving member 23 of the conveying component 20. Specifically, the control module calculates the distance of the pipe transportation by the number of rotations of the first driving member 23 driving the first roller 24. When the first roller 24 (the first driving member 23) rotates to the preset number of rotations (if the first roller 24 does not reach the preset number of rotations, the first driving member 23 continues to drive the first roller 24 to rotate), that is, the pipe reaches the cutting length. When the pipe reaches the preset cutting length, the control module controls the third driving member 422 to drive the transmission gear 421 to rotate, and the transmission gear 421 drives the cutting knife 41 to rotate to cut the pipe. At the same time, when the trigger portion 44 of the transmission gear 421 rotates to the position of the second photoelectric sensor 53, a signal is triggered, and at this time, it represents that the cutting knife 41 has completed cutting.

[0065] The pipe cutting method further includes:

[0066] S3: Determine the total transportation length of the conveying component 20. When the total transportation length reaches the set length, control the conveying component 20 and the cutting component 40 to stop working. Specifically, after the first driving member 23 drives the first roller 24 to rotate a certain number of turns (threads) (the pipe cut to the preset segment quantity), the pipe cutting device stops working. (For example, the pipe is ten meters long (the pipe length and the cutting length are not limited here and can be set according to specific requirements). It is necessary to cut five sections of one-meter-long pipes. When the pipe is transported ten meters by the first roller 24, the pipe cutting device stops working. At this time, the cutting knife 41 has cut out five sections of one-meter-long pipes).

[0067] In some embodiments, during the transportation of the pipe, a signal is triggered by the first photoelectric sensor 52 and fed back to the control module. When the control module receives this signal, it starts to calculate the traveling length of the pipe (the thread of the first driving member 23 driving the first roller 24). When the traveling length of the pipe reaches the preset length, the control module controls the cutting component 40 to cut the pipe. After cutting is completed, a signal is triggered by the second photoelectric sensor 53 and fed back to the control module. When the control module receives this signal, it controls the first driving member 23 to drive the first roller 24 to rotate again to transport the pipe, but the subsequent traveling length of the pipe is calculated starting from when the first driving member 23 is started (not relying on the first photoelectric sensor 52).

[0068] The following further describes the pipe cutting device in combination with the usage process.

[0069] When the pipe cutting device is in use: First, place the pipe into the conveying channel 210. The first driving member 23 drives the first roller 24 to rotate, so as to axially convey the pipe towards the cutting knife 41. During the conveying process, the pipe passes through the first photoelectric sensor 52, and the trigger signal controls the driving module 32 to drive the sliding plate 31 to move parallel to the pipe in the direction of the pipe diameter, so that the second roller 33 cooperates with the second raceway 331 and the first raceway 241 of the first roller 24 to clamp and circumferentially limit the pipe. At the same time, the first driving member 23 and the second driving member 34 drive the first roller 24 and the second roller 33 to rotate, so as to drive the axial conveyance of the pipe. The third driving member 422 drives the cutting knife 41 to rotate to cut the pipe.

[0070] It can be understood that the above embodiments only express the preferred embodiments of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. A pipe cutting device, characterized in that, Including: A main body (10), a conveying component (20), a positioning component (30), and a shearing component (40) respectively installed on the main body (10); The conveying component (20) has a conveying channel (210) for the pipe to pass through. The conveying component (20) abuts against the outer wall of the pipe passing through the conveying channel (210) together with the positioning component (30) to achieve circumferential limitation and axial conveying of the pipe, and the shearing component (40) cuts the axially conveyed pipe.

2. The pipe cutting device according to claim 1, characterized in that, The conveying component (20) includes a limiting structure (22) installed on the main body (10) along the central axis direction of the pipe. The limiting structure (22) includes two guiding blocks (221) oppositely installed on the main body (10), and the conveying channel (210) is formed between the two guiding blocks (221).

3. The pipe cutting device according to claim 1, wherein, The conveying component (20) further includes a first driving member (23) installed on the main body (10) and at least one first roller (24) rotatably installed on the main body (10) and connected to the output end of the first driving member (23), which abuts against the outer wall of one arc surface of the pipe to achieve circumferential limitation and axial conveying of the pipe.

4. The pipe cutting device according to claim 3, characterized in that, The positioning component (30) includes a sliding plate (31), a driving module (32), a second roller (33), and a second driving member (34); The sliding plate (31) is arranged on the main body (10) and moves back and forth between a first position and a second position. When the sliding plate (31) is located at the first position, the second roller (33) abuts against the outer wall of the other arc surface of the pipe to achieve circumferential limitation and axial conveying of the pipe. When the sliding plate (31) is located at the second position, the second roller (33) releases the abutment against the outer wall of the other arc surface of the pipe; The driving module (32) is installed on the main body (10), and its output end is connected to the sliding plate (31) to drive the sliding plate (31) to move back and forth between the first position and the second position; The second driving member (34) is arranged on the sliding plate (31), and the second roller (33) is connected to the output end of the second driving member (34).

5. The pipe cutting device according to claim 4, wherein, The first roller (24) and the second roller (33) rotate towards each other and clamp on both circumferential sides of the pipe to achieve circumferential limitation and axial conveying of the pipe.

6. The pipe cutting device according to claim 1, wherein, The shearing component (40) includes a cutting knife (41) arranged on the main body (10) and a driving component (42) installed on the main body (10) and connected to the cutting knife (41) to drive the cutting knife (41) to cut the pipe; It further includes a trigger part (44) connected to the cutting knife (41).

7. The pipe cutting device according to claim 6, characterized in that, The pipe cutting device further includes a first photoelectric sensor (52) installed on the main body (10) for detecting whether the pipe enters the conveying channel (210); and / or A second photoelectric sensor (53) for detecting whether the trigger part (44) of the shearing component (40) is in place.

8. The pipe cutting device according to claim 7, wherein The pipe cutting device further includes an input module and a control module; The input module is used to input a cutting instruction and transmit the cutting instruction to the control module; The control module controls the conveying component (20) and the cutting component (40) to cut the pipe according to the cutting instruction.

9. A pipe cutting method of a pipe cutting device, characterized in that, The pipe cutting device according to any one of claims 1-8, comprises the following steps: S1: According to the cutting instruction, control the conveying component (20) of the pipe cutting device to convey the pipe axially; S2: Judge whether the length of the pipe conveyed axially reaches the length corresponding to the cutting instruction; when it reaches, control the cutting component (40) of the pipe cutting device to perform cutting.

10. The pipe cutting method according to claim 9, wherein In the step S2, it includes: S2-1: Judge whether the length of the pipe conveyed axially reaches the length corresponding to the cutting instruction by calculating the number of rotation turns of the first driving part (23) of the conveying component (20); The pipe cutting method further includes: S3: Judge the total conveying length of the conveying component (20), and when the total conveying length reaches the set length, control the conveying component (20) and the cutting component (40) to stop working.

Images